diff options
Diffstat (limited to 'arch/mips/math-emu/sp_fint.c')
| -rw-r--r-- | arch/mips/math-emu/sp_fint.c | 44 |
1 files changed, 9 insertions, 35 deletions
diff --git a/arch/mips/math-emu/sp_fint.c b/arch/mips/math-emu/sp_fint.c index 9694d6c016cb..6068e3caae2e 100644 --- a/arch/mips/math-emu/sp_fint.c +++ b/arch/mips/math-emu/sp_fint.c @@ -1,38 +1,21 @@ +// SPDX-License-Identifier: GPL-2.0-only /* IEEE754 floating point arithmetic * single precision */ /* * MIPS floating point support * Copyright (C) 1994-2000 Algorithmics Ltd. - * - * ######################################################################## - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * ######################################################################## */ - #include "ieee754sp.h" -ieee754sp ieee754sp_fint(int x) +union ieee754sp ieee754sp_fint(int x) { - unsigned xm; + unsigned int xm; int xe; int xs; - CLEARCX; + ieee754_clearcx(); if (x == 0) return ieee754sp_zero(0); @@ -50,30 +33,21 @@ ieee754sp ieee754sp_fint(int x) } else { xm = x; } - xe = SP_MBITS + 3; + xe = SP_FBITS + 3; - if (xm >> (SP_MBITS + 1 + 3)) { + if (xm >> (SP_FBITS + 1 + 3)) { /* shunt out overflow bits */ - while (xm >> (SP_MBITS + 1 + 3)) { + while (xm >> (SP_FBITS + 1 + 3)) { SPXSRSX1(); } } else { /* normalize in grs extended single precision */ - while ((xm >> (SP_MBITS + 3)) == 0) { + while ((xm >> (SP_FBITS + 3)) == 0) { xm <<= 1; xe--; } } - SPNORMRET1(xs, xe, xm, "fint", x); -} - - -ieee754sp ieee754sp_funs(unsigned int u) -{ - if ((int) u < 0) - return ieee754sp_add(ieee754sp_1e31(), - ieee754sp_fint(u & ~(1 << 31))); - return ieee754sp_fint(u); + return ieee754sp_format(xs, xe, xm); } |